Accessories and Parts -LiPo Battery Checker Highlights Generic Brand LiPo Battery Checker Description: Lipo Battery Low Voltage Tester 1S-8S Checker Buzzer Alarm with LED Indicator for RC Helicopter for RC drone/helicopter/boat/aircraft Easy to use - works with all 1-8S Lipo/Li-Ion/LiMn/Li-Fe RC drones. Protect the battery from overcharging and overcharging Simply plug in the scale cap and the LED will cycle through the voltages of each cell and show the total voltage You can set the alarm from 2.7 to 3.8V per cell or you can turn off Super alarm sound, it is easier to find your drone Specification: Voltage Detection Accuracy: 0.01V Unit Voltage Display Range: 0.5-4.5V Display Range of total voltage: 0.5-36V 1S test mode voltage range: 3.6-32V Low voltage alarm mode for: 2-8S Alarm value range: OFF-2.7-3.8V Display: LED Weight: 11g sizes: Size: approx. 40 x 25 x 11mm / 1.57 x 0.98 x 0.43inch Package includes: 1 Piece LiPo Battery Checker